What is the difference between an invite and an invitation?

Short answer

An invite is the informal, shortened version of an invitation. In practice, they mean the same thing, but 'invitation' sounds more formal and is often used for printed or official wording, while 'invite' is casual and friendly.

In everyday UK English, 'invite' and 'invitation' are interchangeable, but there is a subtle difference in tone. 'Invite' is a relaxed, modern word, perfect for WhatsApp messages, e-invites, or a quick chat with friends. 'Invitation' feels more traditional and ceremonial, which is why it usually appears on formal printed stationery, wedding websites, or when addressing older relatives. For your wedding, you can mix both: use 'invitation' on the main wording if you want a classic feel, and 'invite' in casual follow-ups or group chats. There is no legal difference, so choose what suits your style. If you are sending digital invites, the word 'invitation' often appears in the subject line or header, but the body can be friendly and warm. The key is consistency: pick one tone and stick to it across all your communications so guests know what to expect. Remember, the content matters more than the label, so focus on clear details like date, time, venue, and RSVP instructions.